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12420671574 = 232070111929
BaseRepresentation
bin10111001000101010…
…00110100001010110
31012001121200111021010
423210111012201112
5200414142442244
65412254033050
7616536652323
oct134425064126
935047614233
1012420671574
1152a4166433
1224a77a8786
13122c36310c
1485b843b4a
154ca668eb9
hex2e4546856

12420671574 has 8 divisors (see below), whose sum is σ = 24841343160. Its totient is φ = 4140223856.

The previous prime is 12420671573. The next prime is 12420671579. The reversal of 12420671574 is 47517602421.

It is a sphenic number, since it is the product of 3 distinct primes.

12420671574 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12420671573) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1035055959 + ... + 1035055970.

It is an arithmetic number, because the mean of its divisors is an integer number (3105167895).

Almost surely, 212420671574 is an apocalyptic number.

12420671574 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12420671574 is a wasteful number, since it uses less digits than its factorization.

12420671574 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2070111934.

The product of its (nonzero) digits is 94080, while the sum is 39.

The spelling of 12420671574 in words is "twelve billion, four hundred twenty million, six hundred seventy-one thousand, five hundred seventy-four".

Divisors: 1 2 3 6 2070111929 4140223858 6210335787 12420671574